Answer:
A.
Step-by-step explanation:
you have to find the discriminant
b²-4ac for each equation
if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots
if discriminant = 0 there is only one solution
if discriminant > 0 two real solutions
for your given problems
A. discriminant =(-2)²-4*2*15 will be negative
Answer:
4 to 6
Step-by-step explanation:
if you do 2 times 2 which is 4 then you do 3 times which is 6 then you get your answer
Answer:
The perimeter is 16 units
Step-by-step explanation:
Add up all the sides together
1+1+7+7 = 16
1 km = 0.62 mi
1 mi = 1.6 km
80*0.62
-or-
60*1.6
Hope this helps
Answer:7/8 8/7
Step-by-step explanation: